package cn.sfrog.project.biz.applet.utils;

import com.alibaba.fastjson.JSONObject;
import org.apache.http.HttpEntity;
import org.apache.http.HttpStatus;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.*;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URI;
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;
import java.nio.charset.CharsetEncoder;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

/**
 * @Author chen
 * @Date 2023-11-27 11:40
 * @title HttpClientUtil
 * @description
 **/
public class HttpClientUtil {
    public static String doGet(String url, Map<String,String> param) {

        // 创建Httpclient对象
        CloseableHttpClient httpclient = HttpClients.createDefault();

        String resultString = "";
        CloseableHttpResponse response = null;
        try {
            // 创建uri
            URIBuilder builder = new URIBuilder(url);
            if (param != null) {
                for (String key : param.keySet()) {
                    builder.addParameter(key, param.get(key));
                }
            }
            URI uri = builder.build();

            // 创建http GET请求
            HttpGet httpGet = new HttpGet(uri);

            // 执行请求
            response = httpclient.execute(httpGet);
            // 判断返回状态是否为200
            if (response.getStatusLine().getStatusCode() == 200) {
                resultString = EntityUtils.toString(response.getEntity(), "UTF-8");
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (response != null) {
                    response.close();
                }
                httpclient.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return resultString;
    }

    public static String doGet(String url) {
        return doGet(url, null);
    }

    public static String doPost(String url, Map<String,String> param) {
        // 创建Httpclient对象
        CloseableHttpClient httpClient = HttpClients.createDefault();
        CloseableHttpResponse response = null;
        String resultString = "";
        try {
            // 创建Http Post请求
            HttpPost httpPost = new HttpPost(url);
            // 创建参数列表
            if (param != null) {
                List<NameValuePair> paramList = new ArrayList<>();
                for (String key : param.keySet()) {
                    paramList.add(new BasicNameValuePair(key, param.get(key)));
                }
                // 模拟表单
                UrlEncodedFormEntity entity = new UrlEncodedFormEntity(paramList);
                httpPost.setEntity(entity);
            }
            // 执行http请求
            response = httpClient.execute(httpPost);
            resultString = EntityUtils.toString(response.getEntity(), "utf-8");
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                response.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        return resultString;
    }

    public static String doPost(String url) {
        return doPost(url, null);
    }

    public static String doPostJson(String url, String json) {
        // 创建Httpclient对象
        CloseableHttpClient httpClient = HttpClients.createDefault();
        CloseableHttpResponse response = null;
        String resultString = "";
        try {
            // 创建Http Post请求
            HttpPost httpPost = new HttpPost(url);
            // 创建请求内容
            StringEntity entity = new StringEntity(json, ContentType.APPLICATION_JSON);
            httpPost.setEntity(entity);
            // 执行http请求
            response = httpClient.execute(httpPost);
            resultString = EntityUtils.toString(response.getEntity(), "utf-8");
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                response.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        return resultString;
    }

    public JSONObject body() throws Exception {
        // 接口需要的参数
        Map<String, String> paramMap = new ConcurrentHashMap<>(2);
//        paramMap.put("jk", "123456");
        String result = HttpClientUtil.doGet("对方地址", paramMap, null);
        JSONObject jsonObject = JSONObject.parseObject(result);
        return jsonObject;
    }

    public static String doGet(String url, Map<String, String> params, Map<String, String> headers) throws Exception {
        // 参数
        StringBuilder paramsBuilder = new StringBuilder(url);
        if (params != null) {
            if (!url.contains("?")) {
                paramsBuilder.append("?");
            }
            List<NameValuePair> list = new ArrayList<>();
            for (Map.Entry<String, String> stringStringEntry : params.entrySet()) {
                list.add(new BasicNameValuePair(stringStringEntry.getKey(), stringStringEntry.getValue()));
            }
            Charset charset = Charset.forName("utf-8");
            CharsetEncoder encoder = charset.newEncoder();
            CharsetDecoder decoder = charset.newDecoder();
            paramsBuilder.append(EntityUtils.toString(new UrlEncodedFormEntity(list, Charset.forName("utf-8"))));
        }
        HttpGet httpGet = new HttpGet(paramsBuilder.toString());
        setHeader(headers, httpGet);
        System.out.println(httpGet);
        return execute(httpGet);
    }

    private static void setHeader(Map<String, String> headers, HttpRequestBase requestBase) {
        if (headers == null) {
            return;
        }
        for (Map.Entry<String, String> stringStringEntry : headers.entrySet()) {
            requestBase.addHeader(stringStringEntry.getKey(), stringStringEntry.getValue());
        }
    }

    private static String execute(HttpUriRequest httpUriRequest) throws Exception {
        try (CloseableHttpClient httpClient = HttpClients.createDefault()) {
            CloseableHttpResponse response = httpClient.execute(httpUriRequest);
            // 请求成功状态
            if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
                try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(response.getEntity().getContent()))) {
                    String tmp;
                    StringBuilder result = new StringBuilder();
                    while ((tmp = bufferedReader.readLine()) != null) {
                        result.append(tmp);
                    }
                    return result.toString();
                }
            }
        }
        return null;
    }

    public static String doPost(String url, Map<String, String> params, Map<String, String> headers) throws Exception {
        HttpPost httpPost = new HttpPost(url);
        if (params != null) {
            List<NameValuePair> list = new ArrayList<>();
            for (Map.Entry<String, String> stringStringEntry : params.entrySet()) {
                list.add(new BasicNameValuePair(stringStringEntry.getKey(), stringStringEntry.getValue()));
            }
            httpPost.setEntity(new UrlEncodedFormEntity(list, Charset.forName("UTF-8")));
        }
        setHeader(headers, httpPost);
        return execute(httpPost);
    }

}
